Loosing Stars

[htgar2_9729409]

On server 36, Quiver of Neith
O/S Windows XP
Playing on Chrome
Each time I when I try to upgrade stars and fail (72% success rate), I loose both stars when it fails and it appears the hero looses one of their stars? Just checking, so loosing the hero's previous stars is what the intent is? Not loosing one of the stars you have used in upgrade? And of course, using money to buy something that when you use it reduces what you have previously bought...
Can this be altered? E.g if you buy stars for full price?

Thank you

[Boroeast]

It says you will lose X stars if you fail.

Here it is

http://prntscr.com/1nn63z